Tumor(T)
Tx: Tumour cannot be measured in size.
T0: No Tumour found.
T1 :<2cm but limited to the organ.
T2: 2-4cms limited to the region.
T3: >4cms with regional spread
T4: >4cms in size and extent of the tumor.
Regional lymph nodes (N)
Nx: Tumor is by near lymph nodes and it is not measured.
N0: There is no Tumor near by lymph nodes.
N1: Involving one group of lymph nodes
N2: Involving two groups of lymph nodes or >2mm in size in one group of lymph nodes.
N3: more than 2 groups of numbers and location of lymph nodes that contain tumor
Metastasis
Mx: No Metastasis.
M0: Ca has not spread to other parts of the body.
M1: Cancer has spread to other parts of the body.
TNM STAGING
Stage 0 - Ca in situ- T1
Stage I - T1N0
Stage II: T1N1 /T2N0
Stage III: T2N1/T3
Stage IV: T4/T2N2/T2N1M1/T3N1M0 with distant spread